Path: ...!weretis.net!feeder8.news.weretis.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: liz@poppyrecords.invalid.invalid (Liz Tuddenham) Newsgroups: sci.electronics.design Subject: Re: Copper can't be mined fast enough to electrify the US Date: Fri, 17 May 2024 21:46:52 +0100 Organization: Poppy Records Lines: 44 Message-ID: <1qtq1rj.u85qz1wp5g2uN%liz@poppyrecords.invalid.invalid> References: <1qtpwpd.kirblf1y68am8N%liz@poppyrecords.invalid.invalid> X-Trace: individual.net dtROGlNTf1FEFabwwBXdggnvIgwYyXu0HTFeMbVPUeBF3QgtWH X-Orig-Path: liz Cancel-Lock: sha1:hH9aK1gDZLvle9FgZUe/Bg0rXAY= sha256:do+T6MshKPVmc8yY9iNsbEppHUReVflpwN9S/fsUPoA= User-Agent: MacSOUP/2.4.6 Bytes: 2017 John Larkin wrote: > On Fri, 17 May 2024 19:58:01 +0100, liz@poppyrecords.invalid.invalid > (Liz Tuddenham) wrote: > > >John Larkin wrote: > > > >[...] > >> Car power, worst to best, roughly: > >> > >> Rubber bands. > >> Springs. > >> Animals (humans included) > >> Sails. > >> Compressed gas. > >> Steam engines. > >> Solar cells. > >> Batteries. > >> Electric trolleys. > >> Cable cars. > >> Funiculars. > >> Fuel cells. > >> Gasoline turbines. > >> Coal dust turbines. > >> Hydrogen turbines. > >> Gasoline piston engines. > >> > >> Did I miss any? > > > >Diesel piston engines - far more fuel-efficient. > > I see very few diesel cars here in California. Lots of Teslas. > > Diesel peaked above the price of gasoline a few years ago, but it's > down below regular gas now. That's probably due to market forces and taxes, the diesel engine is still the most efficient because it has the highest compression ratio. -- ~ Liz Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk